Pith Number

pith:BH4ULDHT

pith:2014:BH4ULDHTD6SQL5OKZJVULS4D4F

not attested not anchored not stored refs pending

Followup Observations of SDSS and CRTS Candidate Cataclysmic Variables

Arlo U. Landolt, David R. Silva, Howard E. Bond, Mark E. Everett, Paula Szkody, Stephanie Vasquez-Soltero, Steve B. Howell

arxiv:1407.3315 v1 · 2014-07-11 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BH4ULDHTD6SQL5OKZJVULS4D4F}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:42:37.463348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09f9458cf31fa505f5caca6b45cb83e142d13865426f773754dc4dfb0b92db8f

Aliases

arxiv: 1407.3315 · arxiv_version: 1407.3315v1 · doi: 10.48550/arxiv.1407.3315 · pith_short_12: BH4ULDHTD6SQ · pith_short_16: BH4ULDHTD6SQL5OK · pith_short_8: BH4ULDHT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BH4ULDHTD6SQL5OKZJVULS4D4F \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 09f9458cf31fa505f5caca6b45cb83e142d13865426f773754dc4dfb0b92db8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bae99bb59dfb1509fa542c91f14051206b31c0874aaa15734a065a1e0e6e374c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-07-11T22:19:51Z",
    "title_canon_sha256": "0982d352b988020671b384d42bfde7678f91ab1e80c064be4d164bddf34c3633"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.3315",
    "kind": "arxiv",
    "version": 1
  }
}